Advances in Manufacturing ›› 2022, Vol. 10 ›› Issue (3): 479-494.doi: 10.1007/s40436-022-00390-5

• ARTICLES • 上一篇    

Model reconstruction for worn blades based on hybrid surface registrations

Kang Cui1, Rui-Song Jiang2, Lin Jing1   

  1. 1. School of Automation and Software Engineering, Shanxi University, Taiyuan 030006, People's Republic of China;
    2. School of Aeronautics and Astronautics, Sichuan University, Chengdu 610065, People's Republic of China
  • 收稿日期:2021-08-06 修回日期:2021-10-07 发布日期:2022-09-08
  • 通讯作者: Kang Cui E-mail:cuikang@sxu.edu.cn
  • 基金资助:
    The authors acknowledge the financial support from the National Natural Science Foundation of China (Grant No.52005311), the Scientific and Technological Innovation Programs of Higher Education Institutions in Shanxi (Grant No.2019L0036), and the Scientific and the National Science and Technology Major Project (Grant No. J2019-VII-0013-0153).

Model reconstruction for worn blades based on hybrid surface registrations

Kang Cui1, Rui-Song Jiang2, Lin Jing1   

  1. 1. School of Automation and Software Engineering, Shanxi University, Taiyuan 030006, People's Republic of China;
    2. School of Aeronautics and Astronautics, Sichuan University, Chengdu 610065, People's Republic of China
  • Received:2021-08-06 Revised:2021-10-07 Published:2022-09-08
  • Supported by:
    The authors acknowledge the financial support from the National Natural Science Foundation of China (Grant No.52005311), the Scientific and Technological Innovation Programs of Higher Education Institutions in Shanxi (Grant No.2019L0036), and the Scientific and the National Science and Technology Major Project (Grant No. J2019-VII-0013-0153).

摘要: Model reconstruction is crucial in blade repair because it directly determines the shape precision and finish of a repaired surface. However, owing to insufficient surface data pertaining to defective regions and the unique deformation caused by harsh environments, modeling a worn blade remains difficult. Hence, a model reconstruction method for worn blades is developed in this study. Unlike conventional methods of constructing and interpolating sectional curves, the proposed method focuses on modifying a nominal computer aided design (CAD) model to reconstruct the worn blade. Through weighted rigid registration and constraint-based non-rigid registration, the design surface extracted from the nominal CAD model can be deformed to align with the surface data of the worn blade without a significant loss of its initial shape. Verification results show that the deformed design surface exhibits sufficient smoothness and accuracy for guiding tool path generation in the subsequent blade repair.

The full text can be downloaded at https://link.springer.com/article/10.1007/s40436-022-00390-5

关键词: Turbine blades, Repair, Model reconstruction, Registration

Abstract: Model reconstruction is crucial in blade repair because it directly determines the shape precision and finish of a repaired surface. However, owing to insufficient surface data pertaining to defective regions and the unique deformation caused by harsh environments, modeling a worn blade remains difficult. Hence, a model reconstruction method for worn blades is developed in this study. Unlike conventional methods of constructing and interpolating sectional curves, the proposed method focuses on modifying a nominal computer aided design (CAD) model to reconstruct the worn blade. Through weighted rigid registration and constraint-based non-rigid registration, the design surface extracted from the nominal CAD model can be deformed to align with the surface data of the worn blade without a significant loss of its initial shape. Verification results show that the deformed design surface exhibits sufficient smoothness and accuracy for guiding tool path generation in the subsequent blade repair.

The full text can be downloaded at https://link.springer.com/article/10.1007/s40436-022-00390-5

Key words: Turbine blades, Repair, Model reconstruction, Registration